Fire extinguishing unmanned aerial vehicle smoke sensing self-starting device

Abstract

The invention belongs to the technical field of fire-fighting unmanned aerial vehicles, and particularly relates to a fire extinguishing unmanned aerial vehicle smoke sensing self-starting device which comprises an environment sensing module, a signal processing and decision module, an unmanned aerial vehicle control module, an energy supply module and a communication and state feedback module. According to the device, through the synergistic effect of multiple modules, initial characteristic signals of a fire disaster are captured in multiple dimensions when the fire disaster occurs, collected original data are converted into high-confidence-coefficient fire behavior judgment, a starting instruction is generated, a corresponding unmanned aerial vehicle is selected to start according to the type and characteristics of the fire disaster, and the fire disaster is controlled and extinguished; the fire extinguishing unmanned aerial vehicle is enabled to be automatically started to extinguish fire after receiving the smoke sensing signal, interference of fire detection and initial fire extinguishing is realized, the response speed to the fire is improved, the diffusion speed of the fire is reduced, the fire is inhibited at the initial stage of the fire, and the safety of personnel and properties is protected.

Description

Technical Field

[0001] The present invention belongs to the technical field of fire-fighting drones, and in particular relates to a smoke sensing self-starting device for a fire-fighting drone. Background Art

[0002] Firefighting drones, also known as firefighting drones, are unmanned aerial vehicles specifically designed for fire rescue. Equipped with sensors, cameras, fire extinguishing devices and other equipment, they can provide real-time intelligence, monitoring and even directly participate in firefighting at the scene of the fire. The use of firefighting drones can greatly improve the efficiency of firefighting, especially in high-risk, difficult-to-access fire scenes. In existing technologies, firefighting drones mostly need to be operated by firefighters to extinguish fires. However, when fires occur in some high-risk places such as substations and factories, it is necessary to wait for firefighters to arrive at the scene before the fire can be extinguished. This process may take several minutes or even more than ten minutes, which may delay the golden time for extinguishing the initial fire and affect the efficiency of firefighting. In order to solve the above problems, this application proposes a smoke sensing self-starting device for a fire-fighting drone. Summary of the Invention

[0003] In order to solve the problems raised in the above background technology, the present invention provides a smoke sensing self-starting device for a fire-fighting drone, which has the characteristic of being able to self-start when a fire occurs.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a smoke sensing self-starting device for a fire-fighting drone, comprising an environmental perception module, a signal processing and decision module, a drone control module, an energy supply module, and a communication and status feedback module; The environmental perception module includes a smoke sensor unit, a temperature sensor unit, and a gas sensor unit. The environmental perception module captures the initial characteristic signals of a fire in multiple dimensions, builds an environmental perception baseline, and monitors the key signals of the initial stage of a fire in real time through multi-sensor collaborative detection, providing the device with raw environmental data and detecting the characteristics of smoldering and open flames. The signal processing and decision module includes a data processing unit, a fire determination unit, and an instruction generation unit. The signal processing and decision module converts the raw data collected by the environmental perception module into a high-confidence fire determination, generates a start instruction, and performs real-time filtering, trend analysis, and logical determination on multi-sensor data through intelligent algorithm fusion to achieve high-precision fire identification and low false trigger rate; The drone control module includes a drone selection unit, a command receiving unit, and a start-up execution unit. The drone control module selects the corresponding drone to start according to the type and characteristics of the fire based on the command of the signal processing and decision module, and safely executes the drone's autonomous takeoff, navigation, and fire extinguishing action chain; The energy supply module includes a main power supply unit, a power distribution unit, and a backup power supply unit. The energy supply module provides stable power for all-weather duty and emergency start-up, using a dual power supply guarantee of a main lithium battery pack and a capacitor backup power supply to cope with sudden power outages; The communication and status feedback module includes a remote communication unit, a status reporting unit, a remote control unit and an event recording unit. The communication and status feedback module realizes device status monitoring, remote management, alarm information uploading and event recording, and provides remote manual takeover capability and post-analysis basis.

[0005] As a preferred smoke sensing self-starting device for a fire-fighting drone of the present invention, the smoke sensor unit includes a photoelectric smoke sensor and an ionization smoke sensor. The photoelectric smoke sensor is sensitive to visible smoke particles and is used to detect smoldering fires. The ionization smoke sensor is more sensitive to tiny invisible particles and is used to detect open fires. The suspended particles are detected in real time by the photoelectric and ionization dual-mode smoke sensors, covering visible and invisible smoke.

[0006] As a preferred smoke sensing self-starting device for a fire-fighting drone of the present invention, the temperature sensor unit uses a thermistor to monitor the ambient temperature, which is used to assist in judging the situation of a sharp temperature increase, monitor the ambient temperature rise rate, and compensate for smoke detection drift.

[0007] As a preferred smoke sensing self-starting device for a fire-fighting drone of the present invention, the gas sensor uses a carbon monoxide sensor to monitor the carbon monoxide produced during a fire, identify fire characteristic gases, and combine temperature data to construct a triple verification logic of smoke and temperature-rising gas.

[0008] As a preferred smoke sensing self-starting device for a fire-fighting drone of the present invention, the data processing unit analog signal conditioning circuit amplifies, filters, and level-converts the analog signal output by the sensor, and converts the conditioned analog signal into a digital signal for processing by the processor.

[0009] As a preferred smoke sensing self-starting device for a fire-fighting drone of the present invention, the fire judgment unit performs threshold comparison by setting thresholds of smoke concentration, temperature, and CO concentration, performs trend analysis by analyzing the rising rate of smoke concentration and the rising rate of temperature, and sets a signal trigger time. It is only judged as a fire when the time exceeds the threshold setting, thereby avoiding false triggering caused by instantaneous interference and reducing the misjudgment rate.

[0010] As a preferred fire-fighting drone smoke sensing self-starting device of the present invention, the drone selection unit is provided with multiple fire-fighting drones, different fire-fighting drones carry different fire extinguishing agents, and the corresponding drones are started to perform fire-fighting actions according to the instructions generated by the signal processing and decision module.

[0011] As a preferred smoke sensing self-starting device for a fire-fighting drone of the present invention, the starting execution unit is provided with an electromagnetic lock to ensure that the fire-fighting drone is physically locked when on standby and unlocked after receiving an instruction. By transmitting predefined fire-fighting mission parameters to the flight control of the fire-fighting drone, the fire-fighting drone flies to the corresponding position along a predefined route.

[0012] As a preferred smoke sensing self-starting device for a fire-fighting drone of the present invention, the main power supply unit is provided with a rechargeable lithium battery pack, which needs to meet the requirements of standby and startup instants; the power distribution unit is provided with a power converter, which converts the battery voltage of the fire-fighting drone into different voltage levels required by each module; the backup power supply unit is provided with a backup capacitor power supply, which can maintain the core processing unit and the communication unit to work briefly when the main power supply is accidentally interrupted, send fault alarm information and complete key state preservation.

[0013] As a preferred smoke sensing self-starting device for a fire-fighting drone of the present invention, the status reporting unit reports sensor data in real time, and immediately sends an alarm message when a fire is detected, the drone is started, or a fault occurs. The remote control unit is provided with a remote control interface to support manual takeover, and the control device forcibly terminates the task and adjusts the fire-fighting path. The event recording unit records key events, including sensor alarms, start-up command issuance, self-test results, fault information timestamps and related data, to facilitate subsequent analysis.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the present device, through the synergistic effect of multiple modules, captures the initial characteristic signals of the fire in multiple dimensions when a fire occurs to detect the smoldering fire and open flame characteristics of the fire, and converts the collected raw data into a high-confidence fire judgment, generates a start instruction, realizes high-precision fire identification and low false trigger rate, selects the corresponding drone to start according to the type and characteristics of the fire, controls and extinguishes the fire, and enables the fire-fighting drone to automatically start and extinguish the fire after receiving the smoke signal, realizes fire detection and early fire extinguishing intervention, improves the reaction speed to the fire, reduces the spread rate of the fire, suppresses the fire in the early stage of the fire, and protects the safety of people and property. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 Schematic diagram of the structure of the environment perception module in the present invention; Figure 3 Schematic diagram of the structure of the signal processing and decision-making module in the present invention; Figure 4 This is a schematic diagram of the structure of the drone control module in the present invention; Figure 5 This is a schematic structural diagram of the energy supply module in the present invention; Figure 6 Schematic diagram of the structure of the communication and status feedback module in the present invention; DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] Example 1 like Figures 1 to 6 As shown; In order to realize the self-start of the fire-fighting drone, this fire-fighting drone smoke sensing self-starting device includes an environmental perception module, a signal processing and decision module, a drone control module, an energy supply module, and a communication and status feedback module; The environmental perception module includes a smoke sensor unit, a temperature sensor unit, and a gas sensor unit. It captures the initial characteristic signals of a fire in multiple dimensions, builds an environmental perception baseline, and monitors the key signals of the initial stage of a fire in real time through multi-sensor collaborative detection. This provides the device with raw environmental data and detects the characteristics of smoldering and open flames. The signal processing and decision-making module includes a data processing unit, a fire determination unit, and an instruction generation unit. The signal processing and decision-making module converts the raw data collected by the environmental perception module into a high-confidence fire determination, generates a start instruction, and performs real-time filtering, trend analysis, and logical determination on multi-sensor data through intelligent algorithm fusion, achieving high-precision fire identification and a low false trigger rate. The UAV control module includes a UAV selection unit, a command receiving unit, and a start-up execution unit. The UAV control module selects the corresponding UAV to start according to the type and characteristics of the fire based on the instructions of the signal processing and decision-making module, and safely executes the UAV's autonomous takeoff, navigation, and fire extinguishing action chain; The energy supply module includes a main power supply unit, a power distribution unit, and a backup power supply unit. The energy supply module provides stable power for all-weather duty and emergency start-up. It uses a dual power supply of a main lithium battery pack and a capacitor backup power supply to cope with sudden power outages. The communication and status feedback module includes a remote communication unit, a status reporting unit, a remote control unit and an event recording unit. The communication and status feedback module realizes device status monitoring, remote management, alarm information uploading and event recording, and provides remote manual takeover capabilities and a basis for post-analysis.

[0018] In this embodiment: when in use, the smoke sensor unit, temperature sensor unit and gas sensor unit are distributedly installed in places where fires are prone to occur. When a fire occurs, the photoelectric smoke sensor will detect visible smoke particles and detect smoldering fires. The ionization smoke sensor will detect tiny invisible particles and detect open fires. The photoelectric and ionization dual-mode smoke sensors detect suspended particles in real time, covering visible and invisible smoke. The thermistor monitors the ambient temperature to assist in judging the situation of a sharp temperature increase, monitors the ambient temperature rise rate, and compensates for smoke detection drift. The carbon monoxide sensor monitors the carbon monoxide produced during the fire and identifies the characteristic gas of the fire. The temperature data is combined to construct a triple verification logic for smoke and temperature rise gas to ensure the detection effect of the fire. The data detected by the environmental perception module will be transmitted to the signal processing and decision-making module. The data processing unit amplifies, filters, and level converts the analog signals output by multiple sensors, and converts the conditioned analog signals into digital signals for processing by the processor. The fire judgment unit receives the processed data and compares the thresholds according to the set smoke concentration, temperature, and CO concentration thresholds. Trend analysis is performed by analyzing the smoke concentration rise rate and the temperature rise rate, and signal The trigger time of the signal must exceed the set threshold time continuously before it is determined to be a fire, avoiding false triggering caused by instantaneous interference, reducing the false judgment rate, and enabling the fire determination unit to judge whether a fire has occurred. When a fire is determined to have occurred, the command generation unit will determine the type of fire based on the processed data, and issue a preset control command for the fire-fighting drone based on the fire type and the location of the sensor that triggered the alarm. The drone selection unit will start the corresponding fire-fighting drone according to the command, and the start execution unit will unlock the electromagnetic lock on the corresponding fire-fighting drone, so that the fire-fighting drone will fly to the location of the fire according to the command along the preset route. The fire-fighting drone will extinguish the fire. The status reporting unit will report sensor data in real time, and immediately send an alarm message when a fire is detected, the drone is started, or a fault occurs. The event recording unit will record the timestamps and related data of the sensor alarm, the start command issuance, the self-test results, and the fault information for subsequent analysis. As a result, the fire-fighting drone will automatically start to extinguish the fire after receiving the smoke sensor signal, realizing fire detection and early fire extinguishing intervention, improving the response speed to the fire, reducing the spread of the fire, suppressing the fire in the early stage, and protecting the safety of people and property.

[0019] Going further: like Figure 2 As shown; Combining the above: In order to ensure the detection effect of fire, in an optional embodiment, the smoke sensor unit includes a photoelectric smoke sensor and an ionization smoke sensor. The photoelectric smoke sensor is sensitive to visible smoke particles and is used to detect smoldering fires. The ionization smoke sensor is more sensitive to tiny invisible particles and is used to detect open fires. The suspended particles are detected in real time by photoelectric and ionization dual-mode smoke sensors, covering visible and invisible smoke. The temperature sensor unit uses a thermistor to monitor the ambient temperature, which is used to assist in judging the situation of a sharp temperature increase, monitor the ambient temperature rise rate, and compensate for smoke detection drift. The gas sensor uses a carbon monoxide sensor to monitor the carbon monoxide produced during a fire, identify fire characteristic gases, and combine temperature data to construct a triple verification logic for smoke and temperature rise gas.

[0020] Going further: like Figure 3 As shown; Combining the above: In order to ensure the stability of the self-starting of the fire-fighting drone, in an optional embodiment, the data processing unit simulates the signal conditioning circuit, amplifies, filters, and level-converts the analog signal output by the sensor, and converts the conditioned analog signal into a digital signal for processing by the processor. The fire judgment unit performs threshold comparison by setting thresholds for smoke concentration, temperature, and CO concentration, performs trend analysis by analyzing the rate of increase of smoke concentration and the rate of increase of temperature, and sets the signal trigger time. It must continue to exceed the threshold set time to be judged as a fire, avoiding false triggering caused by instantaneous interference and reducing the misjudgment rate.

[0021] Going further: like Figure 4 As shown; Combining the above: In order to ensure the effectiveness of fire extinguishing, in an optional embodiment, the drone selection unit sets up multiple fire extinguishing drones, different fire extinguishing drones carry different fire extinguishing agents, and starts the corresponding drones to perform fire extinguishing actions according to the instructions generated by the signal processing and decision module. The execution unit is started to set an electromagnetic lock to ensure that the fire extinguishing drone is physically locked when on standby, and unlocked after receiving the instruction. By transmitting predefined fire extinguishing mission parameters to the fire extinguishing drone flight control, the fire extinguishing drone flies to the corresponding location along the predefined route.

[0022] Going further: like Figure 5 As shown; Combining the above: In order to ensure the stable operation of the fire-fighting drone, in an optional embodiment, the main power supply unit is provided with a rechargeable lithium battery pack to meet the requirements of standby and startup instants. The power distribution unit is provided with a power converter to convert the battery voltage of the fire-fighting drone into different voltage levels required by each module. The backup power supply unit is provided with a backup capacitor power supply. When the main power supply is accidentally interrupted, it can maintain the core processing unit and the communication unit to work briefly, send fault alarm information and complete key state preservation.

[0023] Going further: like Figure 6 As shown; Combining the above: In order to facilitate the control of the device, in an optional embodiment, the status reporting unit reports sensor data in real time and sends an alarm message immediately when a fire is detected, the drone is started, or a fault occurs. The remote control unit sets a remote control interface to support manual takeover, and the control device forcibly terminates the task and adjusts the fire extinguishing path. The event recording unit records key events, including sensor alarms, start-up command issuance, self-test results, fault information timestamps and related data, to facilitate subsequent analysis.

[0024] The working principle and usage process of the present invention are as follows: when in use, the smoke sensor unit, temperature sensor unit and gas sensor unit are distributedly installed in places where fires are prone to occur. When a fire occurs, the photoelectric smoke sensor will detect visible smoke particles and detect smoldering fires. The ionization smoke sensor will detect tiny invisible particles and detect open fires. The photoelectric and ionization dual-mode smoke sensors detect suspended particles in real time, covering visible and invisible smoke. The thermistor monitors the ambient temperature to assist in judging the situation of a sharp temperature increase, monitors the ambient temperature rise rate, and compensates for smoke detection drift. The carbon monoxide sensor monitors the carbon monoxide produced during the fire and identifies the characteristic gas of the fire. The temperature data is combined to construct a triple verification logic for smoke and temperature-rising gas to ensure the detection effect of the fire. The data detected by the environmental perception module will be transmitted to the signal processing and decision-making module. The data processing unit amplifies, filters, and level-converts the analog signals output by multiple sensors, and converts the conditioned analog signals into digital signals for processing by the processor. The fire judgment unit receives the processed data and performs threshold comparison based on the set smoke concentration, temperature, and CO concentration thresholds. Trend analysis is performed by analyzing the smoke concentration rise rate and the temperature rise rate. A signal trigger time is set, and a fire is only determined to be a fire when the signal exceeds the set threshold for a period of time. This avoids false triggering caused by transient interference and reduces the false positive rate, allowing the fire determination unit to determine whether a fire has occurred. When a fire is determined to have occurred, the command generation unit determines the type of fire based on the processed data and issues a preset control command for a fire-fighting drone based on the fire type and the location of the sensor that triggered the alarm. The drone selection unit activates the corresponding fire-fighting drone according to the command, and the start-up execution unit unlocks the electromagnetic lock on the corresponding fire-fighting drone, allowing the fire-fighting drone to fly to the location of the fire according to the command along the preset route. The fire-fighting drone extinguishes the fire. The status reporting unit reports sensor data in real time, and immediately sends an alarm message when a fire is detected, the drone is activated, or a fault occurs. The event recording unit records the timestamps and related data of the sensor alarm, the issuance of the start command, the self-test results, and the fault information for subsequent analysis. As a result, the fire-fighting drone automatically activates and extinguishes the fire after receiving the smoke sensor signal, achieving fire detection and early fire extinguishing intervention, improving the response speed to fire, reducing the spread of fire, suppressing the fire in the early stages, and protecting the safety of people and property.

[0025] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A smoke-sensing self-starting device for a fire-fighting drone, characterized by: It includes environmental perception module, signal processing and decision module, drone control module, energy supply module and communication and status feedback module; The environmental perception module includes a smoke sensor unit, a temperature sensor unit, and a gas sensor unit. The environmental perception module captures the initial characteristic signals of a fire in multiple dimensions, builds an environmental perception baseline, and monitors the key signals of the initial stage of a fire in real time through multi-sensor collaborative detection, providing the device with raw environmental data and detecting the characteristics of smoldering and open flames. The signal processing and decision module includes a data processing unit, a fire determination unit, and an instruction generation unit. The signal processing and decision module converts the raw data collected by the environmental perception module into a high-confidence fire determination, generates a start instruction, and performs real-time filtering, trend analysis, and logical determination on multi-sensor data through intelligent algorithm fusion to achieve high-precision fire identification and low false trigger rate; The drone control module includes a drone selection unit, a command receiving unit, and a start-up execution unit. The drone control module selects the corresponding drone to start according to the type and characteristics of the fire based on the command of the signal processing and decision module, and safely executes the drone's autonomous takeoff, navigation, and fire extinguishing action chain; The energy supply module includes a main power supply unit, a power distribution unit, and a backup power supply unit. The energy supply module provides stable power for all-weather duty and emergency start-up, using a dual power supply guarantee of a main lithium battery pack and a capacitor backup power supply to cope with sudden power outages; The communication and status feedback module includes a remote communication unit, a status reporting unit, a remote control unit and an event recording unit. The communication and status feedback module realizes device status monitoring, remote management, alarm information uploading and event recording, and provides remote manual takeover capability and post-analysis basis.

2. The smoke sensing self-starting device for a fire-fighting drone according to claim 1, characterized in that: The smoke sensor unit includes a photoelectric smoke sensor and an ionization smoke sensor. The photoelectric smoke sensor is sensitive to visible smoke particles and is used to detect smoldering fires. The ionization smoke sensor is more sensitive to tiny invisible particles and is used to detect open fires. The photoelectric and ionization dual-mode smoke sensors detect suspended particles in real time, covering both visible and invisible smoke.

3. The smoke sensing self-starting device for a fire-fighting drone according to claim 1 is characterized by: The temperature sensor unit uses a thermistor to monitor the ambient temperature, which is used to assist in determining a sharp temperature increase, monitor the rate of ambient temperature rise, and compensate for smoke detection drift.

4. The smoke sensing self-starting device for a fire-fighting drone according to claim 1, characterized in that: The gas sensor uses a carbon monoxide sensor to monitor the carbon monoxide produced during a fire, identify fire characteristic gases, and build a triple verification logic of smoke and temperature-rising gas in combination with temperature data.

5. The smoke sensing self-starting device for a fire-fighting drone according to claim 1 is characterized by: The data processing unit analog signal conditioning circuit amplifies, filters, and level-converts the analog signal output by the sensor, and converts the conditioned analog signal into a digital signal for processing by the processor.

6. The smoke sensing self-starting device for a fire-fighting drone according to claim 1, characterized in that: The fire determination unit performs threshold comparison by setting thresholds for smoke concentration, temperature, and CO concentration, performs trend analysis by analyzing the smoke concentration rising rate and temperature rising rate, and sets a signal trigger time. A fire is only determined to be a fire if the time exceeds the threshold setting, thereby avoiding false triggering caused by instantaneous interference and reducing the misjudgment rate.

7. The smoke sensing self-starting device for a fire-fighting drone according to claim 1, characterized in that: The drone selection unit is provided with a plurality of fire-fighting drones, and different fire-fighting drones carry different fire-extinguishing agents. The corresponding drones are activated to perform fire-fighting actions according to the instructions generated by the signal processing and decision module.

8. The smoke sensing self-starting device for a fire-fighting drone according to claim 1 is characterized by: The startup execution unit sets an electromagnetic lock to ensure that the fire-fighting drone is physically locked when on standby, and unlocks after receiving a command. By transmitting predefined fire-fighting mission parameters to the fire-fighting drone flight control, the fire-fighting drone flies to the corresponding location along a predefined route.

9. The smoke sensing self-starting device for a fire-fighting drone according to claim 1, characterized in that: The main power supply unit is equipped with a rechargeable lithium battery pack to meet the requirements of standby and startup. The power distribution unit is equipped with a power converter to convert the battery voltage of the fire-fighting drone into different voltage levels required by each module. The backup power supply unit is equipped with a backup capacitor power supply. When the main power supply is accidentally interrupted, it can maintain the core processing unit and communication unit to work briefly, send fault alarm information and complete key state preservation.

10. The smoke sensing self-starting device for a fire-fighting drone according to claim 1, characterized in that: The status reporting unit reports sensor data in real time and sends alarm information immediately when a fire is detected, the drone is started, or a fault occurs. The remote control unit is equipped with a remote control interface to support manual takeover, and the control device forcibly terminates the task and adjusts the fire extinguishing path. The event recording unit records key events, including sensor alarms, start-up command issuance, self-test results, fault information timestamps and related data, to facilitate subsequent analysis.

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